X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fsfc%2Fsfc_flow.h;h=09105953ff36d71760f6ba76b37ffbc5f98cbe2d;hb=1be514fbcea9e8964296b46c91dbb56715503ae7;hp=d38ac35186e24b6a4f152b8bcf1a1f3c6ab1ff84;hpb=a9825ccf5bb8873b2aef9c502d3a1ef9c8231ad2;p=dpdk.git diff --git a/drivers/net/sfc/sfc_flow.h b/drivers/net/sfc/sfc_flow.h index d38ac35186..09105953ff 100644 --- a/drivers/net/sfc/sfc_flow.h +++ b/drivers/net/sfc/sfc_flow.h @@ -1,30 +1,10 @@ -/*- - * Copyright (c) 2017 Solarflare Communications Inc. - * All rights reserved. +/* SPDX-License-Identifier: BSD-3-Clause + * + * Copyright(c) 2019-2020 Xilinx, Inc. + * Copyright(c) 2017-2019 Solarflare Communications Inc. * * This software was jointly developed between OKTET Labs (under contract * for Solarflare) and Solarflare Communications, Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; - * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _SFC_FLOW_H @@ -39,9 +19,81 @@ extern "C" { #endif +/* + * The maximum number of fully elaborated hardware filter specifications + * which can be produced from a template by means of multiplication, if + * missing match flags are needed to be taken into account + */ +#define SF_FLOW_SPEC_NB_FILTERS_MAX 8 + +/* Used to guard action masks */ +#define SFC_BUILD_SET_OVERFLOW(_action, _set) \ + RTE_BUILD_BUG_ON((_action) >= sizeof(_set) * CHAR_BIT) + +/* RSS configuration storage */ +struct sfc_flow_rss { + unsigned int rxq_hw_index_min; + unsigned int rxq_hw_index_max; + unsigned int rss_hash_types; + uint8_t rss_key[EFX_RSS_KEY_SIZE]; + unsigned int rss_tbl[EFX_RSS_TBL_SIZE]; +}; + +/* Flow engines supported by the implementation */ +enum sfc_flow_spec_type { + SFC_FLOW_SPEC_FILTER = 0, + SFC_FLOW_SPEC_MAE, + + SFC_FLOW_SPEC_NTYPES +}; + +/* VNIC-specific flow specification */ +struct sfc_flow_spec_filter { + /* partial specification from flow rule */ + efx_filter_spec_t template; + /* fully elaborated hardware filters specifications */ + efx_filter_spec_t filters[SF_FLOW_SPEC_NB_FILTERS_MAX]; + /* number of complete specifications */ + unsigned int count; + /* RSS toggle */ + boolean_t rss; + /* RSS hash toggle */ + boolean_t rss_hash_required; + /* RSS configuration */ + struct sfc_flow_rss rss_conf; +}; + +/* MAE-specific flow specification */ +struct sfc_flow_spec_mae { + /* Desired priority level */ + unsigned int priority; + /* Outer rule registry entry */ + struct sfc_mae_outer_rule *outer_rule; + /* EFX match specification */ + efx_mae_match_spec_t *match_spec; + /* Action set registry entry */ + struct sfc_mae_action_set *action_set; + /* Firmware-allocated rule ID */ + efx_mae_rule_id_t rule_id; +}; + +/* Flow specification */ +struct sfc_flow_spec { + /* Flow specification type (engine-based) */ + enum sfc_flow_spec_type type; + + RTE_STD_C11 + union { + /* Filter-based (VNIC level flows) specification */ + struct sfc_flow_spec_filter filter; + /* MAE-based (lower-level HW switch flows) specification */ + struct sfc_flow_spec_mae mae; + }; +}; + /* PMD-specific definition of the opaque type from rte_flow.h */ struct rte_flow { - efx_filter_spec_t spec; /* filter specification */ + struct sfc_flow_spec spec; /* flow specification */ TAILQ_ENTRY(rte_flow) entries; /* flow list entries */ }; @@ -49,6 +101,61 @@ TAILQ_HEAD(sfc_flow_list, rte_flow); extern const struct rte_flow_ops sfc_flow_ops; +enum sfc_flow_item_layers { + SFC_FLOW_ITEM_ANY_LAYER, + SFC_FLOW_ITEM_START_LAYER, + SFC_FLOW_ITEM_L2, + SFC_FLOW_ITEM_L3, + SFC_FLOW_ITEM_L4, +}; + +/* Flow parse context types */ +enum sfc_flow_parse_ctx_type { + SFC_FLOW_PARSE_CTX_FILTER = 0, + SFC_FLOW_PARSE_CTX_MAE, + + SFC_FLOW_PARSE_CTX_NTYPES +}; + +/* Flow parse context */ +struct sfc_flow_parse_ctx { + enum sfc_flow_parse_ctx_type type; + + RTE_STD_C11 + union { + /* Context pointer valid for filter-based (VNIC) flows */ + efx_filter_spec_t *filter; + /* Context pointer valid for MAE-based flows */ + struct sfc_mae_parse_ctx *mae; + }; +}; + +typedef int (sfc_flow_item_parse)(const struct rte_flow_item *item, + struct sfc_flow_parse_ctx *parse_ctx, + struct rte_flow_error *error); + +struct sfc_flow_item { + enum rte_flow_item_type type; /* Type of item */ + enum sfc_flow_item_layers layer; /* Layer of item */ + enum sfc_flow_item_layers prev_layer; /* Previous layer of item */ + enum sfc_flow_parse_ctx_type ctx_type; /* Parse context type */ + sfc_flow_item_parse *parse; /* Parsing function */ +}; + +int sfc_flow_parse_pattern(const struct sfc_flow_item *flow_items, + unsigned int nb_flow_items, + const struct rte_flow_item pattern[], + struct sfc_flow_parse_ctx *parse_ctx, + struct rte_flow_error *error); + +int sfc_flow_parse_init(const struct rte_flow_item *item, + const void **spec_ptr, + const void **mask_ptr, + const void *supp_mask, + const void *def_mask, + unsigned int size, + struct rte_flow_error *error); + struct sfc_adapter; void sfc_flow_init(struct sfc_adapter *sa); @@ -56,6 +163,24 @@ void sfc_flow_fini(struct sfc_adapter *sa); int sfc_flow_start(struct sfc_adapter *sa); void sfc_flow_stop(struct sfc_adapter *sa); +typedef int (sfc_flow_parse_cb_t)(struct rte_eth_dev *dev, + const struct rte_flow_item items[], + const struct rte_flow_action actions[], + struct rte_flow *flow, + struct rte_flow_error *error); + +typedef int (sfc_flow_verify_cb_t)(struct sfc_adapter *sa, + struct rte_flow *flow); + +typedef void (sfc_flow_cleanup_cb_t)(struct sfc_adapter *sa, + struct rte_flow *flow); + +typedef int (sfc_flow_insert_cb_t)(struct sfc_adapter *sa, + struct rte_flow *flow); + +typedef int (sfc_flow_remove_cb_t)(struct sfc_adapter *sa, + struct rte_flow *flow); + #ifdef __cplusplus } #endif